/**
 * @param {string} word
 * @return {number}
 */
var numDifferentIntegers = function (word) {
  let set = new Set()
  let left = 0
  let right = left
  while(right!=word.length){
    if(word[right]>='0'&& word[right]<='9'){
      left=right
      
    }
  }
}

numDifferentIntegers('a123bc34d8ef34')
